JP3673142B2 - Pachinko machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an apparatus for determining a gaming state of a gaming machine based on a random value, and is particularly suitable for reducing a burden on a gaming control program.Pachinko machineAbout.
[0002]
[Prior art]
Conventionally, in a gaming machine such as a pachinko machine, in order to generate a special prize state that is a gaming state advantageous to a player, a plurality of jackpot values are set in a predetermined numerical range (for example, “0” to “999”). In addition, a random value is extracted from the predetermined numerical range at the timing when a game ball wins in a specific winning opening provided on the game board surface, and it is determined whether or not the extracted random value matches the jackpot value. And, when it is determined that they match, a special prize state is caused to occur. In this way, the plurality of jackpot values are set in the predetermined numerical range in order to vary the timing at which the special prize state occurs from the viewpoint of preventing fraud.
[0003]
[Problems to be solved by the invention]
However, in the conventional jackpot determination method, the determination whether or not the jackpot value and the random number value are the same must be performed for all the jackpot values in the predetermined numerical range, and is set. If the number of jackpot values is large, a large burden is placed on the game control program.
[0004]
In the gaming machine, the game control program inputs the reset signal to the reset terminal at a predetermined cycle so that the game control device does not hang up during the game, while the game control program has the longest time required for one cycle from the cycle of inputting the reset signal. Is set short, and after one cycle, it is in a standby state until the next reset signal is input. In addition, the random number value required for the game control program is updated by utilizing the fact that this standby time is indefinite depending on the control state. Therefore, if a large burden is placed on the game control program, even if the maximum time required for one cycle cannot be made shorter than the cycle in which the reset signal is input or can be shortened, there is little variation in the waiting time. Therefore, the contents of random number generation are greatly affected, and the game contents themselves are affected by biasing the special prize probability. Therefore, from this point of view, it is very significant to reduce the burden on the game control program.
[0005]
  Therefore, the present invention has been made paying attention to such unsolved problems of the conventional technology, and is suitable for reducing the burden on the game control program.Pachinko machineThe purpose is to provide.
[0006]
[Means for Solving the Problems]
  In order to achieve the above object, the present invention according to claim 1Pachinko machineIsA start prize opening capable of winning a game ball, a start prize opening switch for detecting that the game ball has won a prize at the start prize opening, and a symbol display device for displaying while changing the symbol,A game control process is executed at a given operation clock cycle, and a counter that cyclically counts within a predetermined numerical range is updated using a time until one cycle of the operation clock elapses. Multiple jackpot values in the numerical range ofScatteredSet it,In accordance with a detection signal from the start winning port switch, the number of winning game balls indicating the number of winnings to the starting winning port is added and a random number value is extracted from the counter, and the extracted random number value is used as the number of winning game balls. Stored in a predetermined storage area corresponding to, and read the random number value from the predetermined storage areaIt is determined whether or not the random value matches the jackpot value, and when it is determined that it matches, a predetermined gaming state is generatedPachinko machineAnd storing the jackpot value belonging to the group for each group by dividing the predetermined numerical range into a plurality of groups, and among the plurality of groups, the storage unitRead outA determination unit for determining a group to which a random value belongs, and a determination for reading out the jackpot value belonging to the group determined by the determination unit from the storage unit and determining whether the read jackpot value matches the random value Means andWhen it is determined by the determination means that they match, the random number value is extracted from the counter, and when it is determined that the extracted random number value is a preset one of odd and even, the predetermined value A first symbol indicating that the game state is caused and the second predetermined gaming state is caused is determined, the symbol that is variably displayed on the symbol display device so as to become the determined symbol is stopped, The second predetermined gaming state is generated following the end of the predetermined gaming state, and when it is determined that the extracted random number value is not a preset one of odd and even numbers, the predetermined gaming state is generated. And determining a second symbol indicating that only the predetermined gaming state is caused, and stopping the symbol variably displayed on the symbol display device so as to become the determined symbol. When the predetermined gaming state is finished, the game state shifts to a normal state, and when the determination means determines that they do not match, the off-line symbol indicating that the normal state is maintained is determined, and the determined symbol is obtained. As shown, the symbols that are variably displayed on the symbol display device are stopped..
[0007]
  With such a configuration, the game control process is executed at a given operation clock cycle, and the counter is updated using the time until one operation clock cycle elapses.Start prize openingWhen a game ball wins,The start winning opening switch detects that a game ball has won the start winning opening, and according to the detection signal from the start winning opening switch, the number of winning game balls is added and a random number value is extracted from the counter and extracted. The random number value thus stored is stored in a predetermined storage area corresponding to the number of winning game balls. A random value is read from a predetermined storage area., Out of multiple groups by decision meansRead outThe group to which the random value belongs is determined, and the determination unit reads the jackpot value belonging to the determined group from the storage unit, and determines whether or not the read jackpot value matches the random value. .
  If the determination means determines that they match, a random value is extracted from the counter. When it is determined that the extracted random number value is an odd number or an even number set in advance, a predetermined gaming state occurs and the first symbol is determined, so that the symbol becomes the determined symbol. The symbol variably displayed on the display device stops. After the end of the predetermined gaming state, a second predetermined gaming state is subsequently generated.
Also, if it is determined that the extracted random number value is not the preset one of the odd number and the even number, the predetermined game state occurs and the second symbol is determined, and the symbol display is made to be the determined symbol. The symbol variably displayed on the device stops. After the predetermined gaming state ends, the normal state is entered.
Further, when the determination means determines that they do not match, the off symbol is determined, and the symbol variably displayed on the symbol display device is stopped so as to become the determined symbol.
[0009]
  Further, the predetermined game state may be anything. For example, if the gaming machine is a pachinko machine, for example, a special prize state that is a gaming state advantageous to the player and a probability variation state that is a gaming state in which the special prize state is likely to occur can be cited..
[0010]
  Also, PlaceTo count cyclically within a fixed numerical range, for example, “1” is incremented sequentially from “0” and the count value exceeds the maximum value (for example, “999”). By returning to 0, the count value is circulated in the range from “0” to “999”. In this case, conversely, the countdown may be performed sequentially by “1” from the maximum value “999”, and may be returned to “999” when the count value exceeds the minimum value “0”.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 relate to the present invention.Pachinko machineIt is a figure which shows this embodiment.
  This embodiment relates to the present invention.Pachinko machineIs applied to the case where the gaming state of the pachinko machine is determined based on the random number value.
[0016]
First, the configuration of the game board surface in the pachinko machine will be described with reference to FIG. FIG. 1 is a diagram schematically showing a front portion of a game board surface in a pachinko machine, particularly a portion necessary for explanation.
In FIG. 1, a special symbol display device 104 that displays symbols (for example, “1” to “9”) independently in three regions is provided at almost the center of the game board surface 102. Above and on both the left and right sides, there are a celestial entrance 121 for allowing a game ball to be always awarded, a left shoulder entrance 122 for allowing a game ball to be always awarded, and a right shoulder entrance 123 for allowing a game ball to be always awarded. And are provided. Below the left shoulder winning port 122 and the right shoulder winning port 123, there are provided a left sleeve winning port 124 that allows a game ball to always win and a right sleeve winning port 125 that allows a game ball to always win. .
[0017]
Also, below the special symbol display device 104, there is provided a start winning port 111 that allows a game ball to be always won, and the start winning port 111 is a start winning port switch that detects that a game ball has won. 131 is provided.
Below the start winning opening 111, there is provided a normal symbol display device 106 which displays a one-digit number from “0” to “9” while fluctuating. Actuating gates 113 and 114 that allow passage are provided.
[0018]
Also, below the normal symbol display device 106, the symbols that are normally closed but displayed in the three areas of the special symbol display device 104 are specified (for example, “333” or “777”). When it becomes, a special winning opening 115 is provided which allows the game ball to be opened in a predetermined pattern.
On both the left and right sides of the big winning opening 115, a left falling winning opening 126 that allows a game ball to be always awarded and a right falling winning opening 127 that allows a game ball to be always awarded are provided. Below is a closed state when it is normal, but when the number displayed on the normal symbol display device 106 becomes a specific number (for example, “3” or “7”), it is opened in a predetermined pattern. Thus, an ordinary electric accessory 112 that can win a game ball is provided.
[0019]
An out port 108 for collecting game balls that have not won any of the above winning ports or the like is provided below the ordinary electric accessory 112 and at the lowermost part of the game board surface 102.
It should be noted that each of the ordinary electric accessory 112, the operation gates 113 and 114, and the big prize opening 115 has various prize opening switches for detecting that a game ball has won or passed (hereinafter, generic names of various prize opening switches are shown). The reference numeral 132 is used.).
[0020]
Also, hereinafter, a gaming state that is generated when the symbols displayed in the three areas of the special symbol display device 104 become a specific one is referred to as a “special prize state”, which is a more specific one of the special prize states. Thus, a gaming state in which the probability of entering the special prize state after completion of the special prize state is higher than normal is referred to as a “probability variation state”, and a gaming state other than the special prize state and the probability variation state is referred to as a “normal state”.
[0021]
Next, the configuration of the main board in the pachinko machine will be described with reference to FIG. FIG. 2 is a block diagram showing the configuration of the main board.
As shown in FIG. 2, the main board 200 includes a CPU 220 that controls the gaming state of the pachinko machine based on a game control program, a ROM 230 that stores a game control program of the CPU 220 in a predetermined area, and a ROM 230. The RAM 240 stores the read data and calculation results necessary in the calculation process of the CPU 220, and the I / O 250 that mediates input / output of data to / from an external device. These signals are signals for transferring data. The buses 260 are connected to each other so as to be able to exchange data.
[0022]
The I / O 250 includes, as external devices, a start winning port switch 131, various winning port switches 132, a symbol display control unit 150 that performs symbol display control on the special symbol display device 104 and the normal symbol display device 106, and the like. The indicator lamp control unit 152 that controls the display lamp 153, the sound effect control unit 154 that controls the output of the sound effect to the sound effect output device 155, and the prize ball for the prize ball payout device 157 Are connected to an external terminal 158 for outputting prize ball payout information and game control information from the prize ball payout control section 156 to the hall computer 159.
[0023]
Further, the award ball payout control unit 156 is connected to a launch control unit 160 that controls the launch of the game ball to the launch device 161 that launches the game ball onto the game board surface 102. When the number of game balls supplied to the prize ball payout device 157 is insufficient, a stop signal for stopping the launch device 161 is output to the launch control unit 160 in order to secure a predetermined number of prize balls. ing.
[0024]
In the ROM 230, a predetermined numerical range (for example, “0” to “999”) is divided into three groups, and jackpot values belonging to the group are registered for each group. The first group registers jackpot values belonging to a numerical range from “0” to “300” in the predetermined numerical range, and for example, “3”, “7” "," 97 "and" 167 "are registered. The second group registers jackpot values belonging to the numerical range from “301” to “600” in the predetermined numerical range, and for example, “389”, “457”, “499”, and “547” are registered. The third group registers jackpot values belonging to the numerical range from “601” to “999” in the predetermined numerical range, and for example, “641”, “751”, “853”, and “991” are registered.
[0025]
The jackpot value is a reference value for determining whether or not a special prize state or a probability variation state is caused, and whether or not the random value extracted from the predetermined numerical range matches the jackpot value. Is determined, and when it is determined that they match, it is used in a process of generating a special prize state or a probability variation state. This process will be described in detail later.
[0026]
The CPU 220 includes a microprocessing unit MPU and the like, and operates based on a game control program capable of executing one cycle with a predetermined operation clock (for example, 4 [ms]) by a reset signal from a reset circuit (not shown). The game control program stored in a predetermined area of the ROM 230 is activated to execute the game control process shown in the flowchart of FIG.
[0027]
First, the game control process will be described with reference to FIG. FIG. 3 is a flowchart showing the game control process.
When the game control process is executed by the CPU 220, as shown in FIG. 3, first, the process proceeds to step S100.
In step S100, it is determined whether or not the process is executed for the first time after the power is turned on. If it is determined that the process is executed for the first time (Yes), the process proceeds to step S102 to initialize or initialize the RAM 240. An initialization process such as data setting is executed, and the process proceeds to step S104.
[0028]
In step S104, for example, processing for outputting the result of the game control to the indicator light control unit 152, the sound effect control unit 154, and the prize ball payout control unit 156, information on the game control, and the like are transmitted via the external terminal 158 to the hall computer. The process which outputs to 159 is performed and it transfers to step S106.
In step S106, a random number value used for lottery for determining whether or not a special prize state or a probability variation state is caused, a random number value for determining the type of symbol to be displayed, and a random number value necessary for game control are stored in the operation clock. Updating is performed using the time until one cycle (4 [ms]) elapses, and when that time elapses, the process proceeds to step S100. Specifically, in step S106, in order to update the random number value used in the lottery for determining whether or not the special prize state or the probability variation state is caused, a predetermined numerical range (for example, “0” to “999”) is cyclic. A random number counter for counting is used. Counting cyclically within a predetermined numerical range means, for example, that counting is incremented by “1” sequentially from “0”, and when the count value exceeds a maximum value (for example, “999”), By returning to 0, the count value is circulated in the range from “0” to “999”.
[0029]
On the other hand, when it is determined in step S100 that the process is not executed for the first time after the power is turned on (No), the process proceeds to step S108, the check process of the start winning a prize opening switch 131 is performed, and the process proceeds to step S110. To do.
In step S110, it is determined whether or not the pachinko machine is in an abnormal state. When it is determined that the pachinko machine is in an abnormal state (Yes), the process proceeds to step S104, but when it is determined that it is not (No). Then, the process proceeds to step S112, the symbol control process is executed, and the process proceeds to step S104.
[0030]
Next, the check process of the start winning opening switch in step S108 will be described in detail with reference to FIG. FIG. 4 is a flowchart showing a check process of the start winning a prize opening switch.
When the start winning opening switch check process is executed in step S108, as shown in FIG. 4, first, the process proceeds to step S200.
[0031]
In step S200, an input port reading process for reading the detection signal from the start winning port switch 131 from a predetermined port of the I / O 250 corresponding to the starting winning port switch 131 is executed, and the process proceeds to step S202. Based on the processing result, it is determined whether or not a detection signal is input from the start winning a prize opening switch 131. When it is determined that the detection signal is input (Yes), the process proceeds to step S204.
[0032]
In step S204, it is determined whether or not the number of winning game balls to the starting winning port 111 counted based on the detection signal from the starting winning port switch 131 is "4" or more, and the number of winning game balls is "4". When it is determined that the number is less than (No), the process proceeds to step S206, "1" is added to the number of winning game balls, the process proceeds to step S208, and a random number value is input from the random number counter. Migrate to
[0033]
In step S210, the input random number value is stored in a predetermined area of the RAM 240 corresponding to the number of winning game balls, the series of processes is terminated, and the original process is restored. In step S210, for example, when the number of winning game balls is “1”, the input random number value is stored in the first area of the RAM 240 for storing the random number value. Similarly, when the number of winning game balls is “2”, the input random number value is stored in the second area for storing random number values.
[0034]
On the other hand, when it is determined in step S204 that the number of winning game balls is “4” or more (Yes), the series of processes is terminated and the process returns to the original process.
Next, the symbol control process in step S112 will be described in detail with reference to FIG. FIG. 5 is a flowchart showing the symbol control process. Hereinafter, only the symbol control process of the special symbol display device 104 will be described, and the description of the symbol control process of the normal symbol display device 106 will be omitted.
[0035]
In the symbol control process, in order to cause a special prize state or a probability variation state with a predetermined probability (for example, 1/83), twelve jackpot values are set in the predetermined numerical range, and a game ball is placed in the start winning opening 111. When the random number value is input from the random number counter at the timing of winning, and a special prize state or a probability variation state is generated when the input random number value matches the jackpot value, the process is executed in step S112. First, as shown in FIG. 5, the process proceeds to step S300.
[0036]
In step S300, it is determined whether or not the symbol displayed on the special symbol display device 104 is changing. If it is determined that the symbol is not changing (No), the process proceeds to step S302, and a winning game ball It is determined whether or not the number is “1” or more, and when it is determined that the number of winning game balls is “1” or more (Yes), the process proceeds to step S304.
[0037]
In step S304, a random number value is read from a predetermined area of the RAM 240 corresponding to the number of winning game balls, and the process proceeds to step S306 to execute symbol variation start processing for starting variation of the symbol displayed on the special symbol display device 104. Then, the process proceeds to step S308, where it is determined whether or not the read random number value belongs to the range from “0” to “300”, and when it is determined that it belongs to this numerical range (Yes) The process proceeds to step S310. In step S308, specifically, it is determined whether or not the read random number value is equal to or lower than the upper limit value “300”, and whether or not the read random number value is equal to or higher than the lower limit value “0”. When it is determined that there is a value that is greater than or equal to the lower limit value, it is determined that it belongs to the numerical range. Hereinafter, in step S330, it is the same.
[0038]
In step S310, it is determined whether or not the jackpot value in the first group of the ROM 230 matches the read random number value, and the process proceeds to step S312 and it is determined that they match. If (Yes), the process proceeds to step S313.
In step S313, a random number value is input from the random number counter, and the process proceeds to step S314 to determine whether or not the input random number value is an odd number. When it is determined that the input random number is an odd number (Yes), step S316 is performed. To determine the high-probability transition symbol for causing the special prize state and causing the probability variation state to occur following the completion of the special prize state, and then proceeds to step S318. In step S316, the symbol is determined and a jackpot flag indicating that the special prize state has been generated is set. The same applies to step S326.
[0039]
In step S318, a symbol variation stop process is performed to stop the symbol variably displayed on the special symbol display device 104 so that the determined symbol is obtained. The process proceeds to step S320, and “1” is calculated from the number of winning game balls. And the process proceeds to step S322 to determine whether or not it is a big win based on the jackpot flag. If it is determined that the jackpot is a big win (Yes), the process proceeds to step S324 to set the big prize opening 115 to a predetermined value. The electric accessory actuating process for making the pattern open is executed, the series of processes is terminated, and the original process is restored.
[0040]
On the other hand, when it is determined in step S322 that it is not a big hit (No), the series of processes is terminated and the process returns to the original process.
On the other hand, when it is determined in step S314 that the input random number value is an even number (No), the process proceeds to step S326 to cause only the special prize state to occur and to return to the normal state after the special prize state ends. A low-probability transition symbol is determined, and the process proceeds to step S318.
[0041]
On the other hand, when it is determined in step S312 that the jackpot value and the random number value do not match (No), an off symbol for determining the normal state without causing the special prize state is determined, and the process proceeds to step S318.
On the other hand, when it is determined in step S308 that the read random number value does not belong to the range from “0” to “300” (No), the process proceeds to step S330, and the read random value is “301”. To “600” is determined, and if it is determined that it belongs to this numerical range (Yes), the process proceeds to step S332.
[0042]
In step S332, it is determined whether the jackpot value in the second group of the ROM 230 matches the read random number value, and the process proceeds to step S312.
On the other hand, when it is determined in step S330 that the read random number value does not belong to the range from “301” to “600” (No), the process proceeds to step S334 and is in the third group of the ROM 230. It is determined whether or not the jackpot value matches the read random number value, and the process proceeds to step S312.
[0043]
On the other hand, if it is determined in step S302 that the number of winning game balls is “0” (No), and if it is determined in step S300 that the symbol is changing (Yes), both of them are step S322. Migrate to
Next, the operation of the above embodiment will be described.
First, when power is turned on to the pachinko machine and a game is started in the pachinko machine, the CPU 210 sequentially increments the count value of the random number counter from “0” through step S106. Thereby, in the symbol control process, it is possible to input a random value that is counted up cyclically in the range from “0” to “999”.
[0044]
On the other hand, when a game ball wins the start winning opening 111, a detection signal is output by the start winning end switch 131. In the CPU 220, when a detection signal is input from the start winning opening switch 131, a random number value is input from the random number counter at almost the same timing. At this time, if the input random value belongs to the range from “0” to “300”, it is determined whether or not the jackpot value in the first group of the ROM 230 matches the random value. As a result of the determination, when it is determined that they match, the symbol for causing the special prize state is displayed on the special symbol display device 104, and the special prize state is caused. In this case, since the four jackpot values are registered in the first group, the four jackpot values are registered in the first group, so the determination on the jackpot value in the first group is made. The number of times is 2 times, 3 times, 4 times, and 5 times, respectively, including the number of times of determination in step S308. Therefore, the maximum number of determinations is 5, and the average number of determinations is 3.5.
[0045]
Furthermore, when a new random number value is input from the random number counter and the input new random number value is an odd number, the high probability transition symbol is displayed on the special symbol display device 104, and after the special prize state is ended, Subsequently, a probability fluctuation state is generated. When the input new random number is an even number, the low probability transition symbol is displayed on the special symbol display device 104, and after the special prize state is finished, the normal state is set.
[0046]
On the other hand, if the input random number value belongs to the range from “301” to “600”, it is determined whether or not the jackpot value in the second group of the ROM 230 matches the random value. As a result of the determination, when it is determined that they match, the symbol for causing the special prize state is displayed on the special symbol display device 104, and the special prize state is caused. In this case, since the four jackpot values are registered in the second group, the number of determinations for the jackpot value in the second group is three times each including the number of determinations in steps S308 and S330. 4, 5 and 6 times. Therefore, the maximum number of determinations is 6, and the average number of determinations is 4.5.
[0047]
On the other hand, if the input random number value belongs to the range from “601” to “999”, it is determined whether or not the jackpot value in the second group of the ROM 230 matches the random value. As a result of the determination, when it is determined that they match, the symbol for causing the special prize state is displayed on the special symbol display device 104, and the special prize state is caused. In this case, since the four jackpot values are registered in the third group, the number of determinations for the jackpot value in the third group is three times each including the number of determinations in steps S308 and S330. 4, 5 and 6 times. Therefore, the maximum number of determinations is 6, and the average number of determinations is 4.5.
[0048]
As a result of the determination, when it is determined that the jackpot value does not match the random number value, the off symbol is displayed on the special symbol display device 104, and the normal state is continued.
From the above, when the predetermined value range is grouped into a plurality of groups and the determination of the jackpot value and the random number value is performed as in the present embodiment, the average number of determinations is 4.166 as a whole. . On the other hand, in the same case, when the jackpot value and the random number value are determined without grouping the predetermined numerical ranges as in the conventional jackpot determination method, the average number of determinations is 6 as a whole. .5 times.
[0049]
In this way, in the present embodiment, a predetermined numerical range is divided into a plurality of groups, a group to which a random value belongs belongs to a plurality of groups, and the jackpot value and the random value in the determined group are determined. Judgment is made whether or not they match.
Thereby, since the number of determinations can be reduced in the lottery for determining whether or not the special prize state or the probability fluctuation is caused, the burden on the game control program can be relatively reduced as compared with the conventional case.
[0050]
In the above embodiment, the ROM 230 corresponds to the storage means described in claim 1, steps S308 and S330 correspond to the determination means described in claim 1, and steps S310, S332, and S334 correspond to claim 1. It corresponds to the determination means.
In the above embodiment, the case where the game control program stored in advance in the ROM 230 is executed has been described in executing the processes shown in the flowcharts of FIGS. 3 to 5, but the present invention is not limited to this. The program may be read from the storage medium storing the program showing these procedures into the RAM 240 and executed.
[0051]
Here, the storage medium is a semiconductor storage medium such as RAM or ROM, a magnetic storage type storage medium such as FD or HD, an optical reading type storage medium such as CD, CDV, LD, or DVD, or a magnetic storage type such as MO. / Optical reading type storage media, including any storage media that can be read by a computer regardless of electronic, magnetic, optical, or other reading methods.
[0053]
【The invention's effect】
  As described above, the claims of the present invention1DescribedPachinko machineAccording to the above, an effect that the burden on the game control program can be relatively reduced as compared with the prior art can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing a front portion of a game board surface 102 in a pachinko machine, particularly a portion necessary for explanation.
FIG. 2 is a block diagram showing a configuration of a main board 200. FIG.
FIG. 3 is a flowchart showing a game control process.
FIG. 4 is a flowchart showing a check process of a start winning a prize opening switch.
FIG. 5 is a flowchart showing a symbol control process.
[Explanation of symbols]
104 Special symbol display device
106 Normal symbol display device
112 Ordinary electric equipment
113,114 Working gate
115 grand prize opening
121 Tenryo Prize
122 Left shoulder winning entrance
123 Right shoulder winning entrance
124 Left sleeve winning entrance
125 Right Sleeve Winner
126 Left-down winning entrance
127 Right-down winning entrance
111 start prize opening
131 Start prize opening switch
200 Main board
220 CPU
230 ROM
240 RAM
250 I / O

Claims (1)

Provided with a start winning opening capable of winning a game ball, a start winning opening switch for detecting that the game ball has won a prize in the start winning opening, and a symbol display device for displaying the symbols while changing the symbols. A game control process is executed at a clock cycle, and a counter that cyclically counts within a predetermined numerical range is updated using the time until one cycle of the operation clock elapses. A plurality of jackpot values are set in a scattered manner, and in accordance with a detection signal from the start winning port switch, the number of winning game balls indicating the number of winning prizes to the starting winning port is added and a random value is obtained from the counter. extracting the extracted random number value stored in a predetermined storage area corresponding to the number of winning game balls, reading the random value from the predetermined storage area, the read random number value matches the jackpot value And it is judged whether or not the that, in the pachinko machine to rise to a predetermined gaming state when it is determined that they match,
Storage means for storing the jackpot value belonging to the group for each group by dividing the predetermined numerical range into a plurality of groups;
Determining means for determining a group to which the read random number value belongs among the plurality of groups;
A jackpot value belonging to the group determined by the determining unit is read from the storage unit, and a determination unit that determines whether or not the read jackpot value and the random value match,
When it is determined by the determination means that they match, the random number value is extracted from the counter, and when it is determined that the extracted random number value is a preset one of odd and even, the predetermined value Determining a first symbol indicating that the game state is to be generated and causing the second predetermined gaming state to be generated, stopping the symbol variably displayed on the symbol display device so as to be the determined symbol; Causing the second predetermined gaming state to occur following the end of the predetermined gaming state;
When it is determined that the extracted random number is not an odd number or an even number set in advance, a second symbol indicating that the predetermined gaming state is generated and only the predetermined gaming state is generated is determined. , To stop the symbol that is variably displayed on the symbol display device so that it becomes the determined symbol, after the end of the predetermined gaming state, transition to the normal state,
When it is determined by the determination means that they do not coincide with each other, a symbol that indicates that the normal state is maintained is determined, and the symbol that is variably displayed on the symbol display device is stopped so that the determined symbol is obtained. pachinko machine, characterized in that it has become way.

Images